Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings to continued mass sightings in the US, each episode gives historic depth to the questions, speculations, provocative controversies, first-hand accounts and grounded theories surrounding this age old debate.
Robert Clotworthy
as Narrator (voice)
Giorgio A. Tsoukalos
as Self
Ariel Bar Tzadok
as Self
Jonathan Young
as Self
David Childress
as Self
Erich von Däniken
as Self
Linda Moulton Howe
as Self
David Wilcock
as Self
George Noory
as Self
Philip Coppens
as Self
Nick Pope
as Self
Mike Bara
as Self